1099+ Important Chemistry MCQ Questions Answers

Q:

Which of the following elements has the lowest melting point?

A) Bromine	B) Zinc
C) Lead	D) Calcium

Answer & Explanation Answer: A) Bromine

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Q:

Which of the following elements has the lowest melting point?

A) Tin	B) Hydrogen
C) Carbon	D) Sodium

Answer & Explanation Answer: B) Hydrogen

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Q:

Which molecule contains a polar covalent bond?

A) NBr3	B) C2H4
C) ZnS	D) AgL

Answer & Explanation Answer: A) NBr3

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Q:

Which of the following are highly compressible?

A) Solid	B) Liquid
C) Gas	D) Solid and Liquid

Answer & Explanation Answer: C) Gas

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Q:

What is the weight of one mole Carbon atoms?

A) 12 gm	B) 120 gm
C) 1.2 gm	D) 0.12 gm

Answer & Explanation Answer: A) 12 gm

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Q:

The molecular formula of Propane is

A) C2H6	B) C4H10
C) C3H8	D) CH4

Answer & Explanation Answer: C) C3H8

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Q:

Acetic Acid is another name for which of the following?

A) Vinegar	B) Baking Soda
C) Copper Sulphate	D) Magnesium Oxide

Answer & Explanation Answer: A) Vinegar

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Q:

Limestone is a raw material used by which industry?

A) Aluminium	B) Fertilizers
C) Cement	D) Petrochemicals

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